An AWS engineer has reported PostgreSQL throughput dropping to 0.51x on Linux 7.0 after a kernel preemption change, with no fix before stable release.
  • Endmaker@ani.socialEnglish
    1·
    9 days ago

    kernel maintainers are pushing the fix burden onto PostgreSQL

    Maybe it isn’t applicable in this context, but didn’t Linus Torvalds send an angry email on an adjacent topic, but regarding the same philosophy?

    Found it: we do not break userspace

    Disclaimer: I am a noob when it comes to Linux and building operating systems.

  • realitaetsverlust@piefed.zipEnglish
    0·
    9 days ago

    I think it’s a bit weird that postgres hasn’t done any testing on the new kernel. That’s something I would kinda expect from a major database. The fact this was only found in production is a bit … weird.